640386051840

Names of 640386051840

• Cardinal: 640386051840 can be written as Six hundred forty billion, three hundred eighty-six million, fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.4038605184 × 10¹¹

Factors of 640386051840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 432

Divisors of 640386051840

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 43 45 48 54 60 64 72 80 81 86 90 96 108 120 128 129 135 144 160 162 172 180 192 215 216 240 256 258 270 288 320 324 344 360 379 384 387 405 430 432 480 516 540 576 640 645 648 688 720 758 768 774 810 860 864 960 1032 1080 1137 1152 1161 1280 1290 1296 1376 1440 1516 1548 1620 1720 1728 1895 1920 1935 2064 2160 2274 2304 2322 2580 2592 2752 2880 3032 3096 3240 3411 3440 3456 3483 3790 3840 3870 4128 4320 4548 4644 5160 5184 5504 5685 5760 5805 6064 6192 6480 6822 6880 6912 6966 7580 7740 8256 8640 9096 9288 10233 10320 10368 11008 11370 11520 11610 12128 12384 12960 13644 13760 13932 15160 15480 16297 16512 17055 17280 17415 18192 18576 20466 20640 20736 22740 23220 24256 24768 25920 27288 27520 27864 30320 30699 30960 32594 33024 34110 34560 34830 36384 37152 40932 41280 45480 46440 48512 48891 49536 51165 51840 54576 55040 55728 60640 61398 61920 65188 68220 69660 72768 74304 81485 81864 82560 90960 92880 97024 97782 99072 102330 103680 109152 111456 121280 122796 123840 130376 136440 139320 143641 145536 146673 148608 153495 162970 163728 165120 181920 185760 195564 204660 218304 222912 242560 244455 245592 247680 260752 272880 278640 287282 291072 293346 297216 306990 325940 327456 363840 371520 391128 409320 430923 436608 440019 445824 485120 488910 491184 495360 521504 545760 557280 574564 586692 613980 651880 654912 718205 727680 733365 743040 782256 818640 861846 873216 880038 891648 977820 982368 1043008 1091520 1114560 1149128 1173384 1227960 1292769 1303760 1309824 1320057 1436410 1455360 1466730 1486080 1564512 1637280 1723692 1760076 1955640 1964736 2086016 2154615 2183040 2200095 2229120 2298256 2346768 2455920 2585538 2607520 2619648 2640114 2872820 2933460 3129024 3274560 3447384 3520152 3878307 3911280 3929472 4172032 4309230 4366080 4400190 4458240 4596512 4693536 4911840 5171076 5215040 5280228 5745640 5866920 6176563 6258048 6463845 6549120 6600285 6894768 7040304 7756614 7822560 7858944 8618460 8800380 9193024 9387072 9823680 10342152 10430080 10560456 11491280 11634921 11733840 12353126 12516096 12927690 13098240 13200570 13789536 14080608 15513228 15645120 17236920 17600760 18386048 18529689 18774144 19391535 19647360 20684304 20860160 21120912 22982560 23269842 23467680 24706252 25855380 26401140 27579072 28161216 30882815 31026456 31290240 34473840 35201520 36772096 37059378 37548288 38783070 39294720 41368608 42241824 45965120 46539684 46935360 49412504 51710760 52802280 55158144 55589067 56322432 58174605 61765630 62052912 62580480 68947680 70403040 74118756 77566140 82737216 84483648 91930240 92648445 93079368 93870720 98825008 103421520 105604560 110316288 111178134 112644864 116349210 123531260 124105824 137895360 140806080 148237512 155132280 165474432 166767201 168967296 183860480 185296890 186158736 187741440 197650016 206843040 211209120 222356268 232698420 247062520 248211648 275790720 277945335 281612160 296475024 310264560 330948864 333534402 337934592 370593780 372317472 395300032 413686080 422418240 444712536 465396840 494125040 496423296 500301603 551581440 555890670 563224320 592950048 620529120 667068804 741187560 744634944 790600064 827372160 833836005 844836480 889425072 930793680 988250080 992846592 1000603206 1111781340 1185900096 1241058240 1334137608 1482375120 1489269888 1581200128 1654744320 1667672010 1689672960 1778850144 1861587360 1976500160 2001206412 2223562680 2371800192 2482116480 2501508015 2668275216 2964750240 2978539776 3335344020 3557700288 3723174720 3953000320 4002412824 4447125360 4743600384 4964232960 5003016030 5336550432 5929500480 6670688040 7115400576 7446349440 7906000640 8004825648 8894250720 10006032060 10673100864 11859000960 13341376080 14230801152 14892698880 16009651296 17788501440 20012064120 21346201728 23718001920 26682752160 32019302592 35577002880 40024128240 42692403456 53365504320 64038605184 71154005760 80048256480 106731008640 128077210368 160096512960 213462017280 320193025920 640386051840
• Sum of all divisors σ(n): 2350910087064
• Sum of proper divisors (its aliquot sum) s(n): 1710524035224
• 640386051840 is an abundant number, because the sum of its proper divisors (1710524035224) is greater than itself. Its abundance is 1070137983384

Bases of 640386051840

• Binary: 1001010100011001111110111010111100000000₂
• Hexadecimal: 0x9519FBAF00
• Base-36: 866TBK00

Squares and roots of 640386051840

• 640386051840 squared (640386051840²) is 410094295391223167385600
• 640386051840 cubed (640386051840³) is 262618666707692112350403838869504000
• The square root of 640386051840 is 800241.2460252221
• The cube root of 640386051840 is 8619.4711690833

Scales and comparisons

• 640,386,051,840 seconds is equal to 20,362 years, 15 weeks, 2 days, 14 hours, 24 minutes.
• To count from 1 to 640,386,051,840 would take you about forty thousand, seven hundred twenty-four years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 640386051840 cubic inches would be around 718.3 feet tall.

Recreational maths with 640386051840

• 640386051840 backwards is 048150683046
• 640386051840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640386051840's digits is 45
• More coming soon!